The family of an aspiring pilot who died after he was restrained by nightclub bouncers have appealed to a woman who filmed what happened to come forward.
30-year-old Adam Hird died in hospital two days after the confrontation outside the No.65 bar in Vauxhall early on Sunday, June 15.
Scotland Yard said a tall, slim, blonde woman in her 20s, who was wearing shorts and had her hair in a ponytail, filmed what happened on a "flip phone".
Adam Hird, a keen traveller, from Epping, was engaged and had hoped to become a father.
Witnesses can call police on 020 8721 4054, or to remain anonymous Crimestoppers on 0800 555111.